| Football Association of Wales Challenge Cup | |
| Year: | 1887–88 |
| Country: | Wales |
| Defending Champions: | Chirk AAA |
| Winners: | Chirk AAA |
| Second: | Newtown |
| Prev Season: | 1886–87 |
| Next Season: | 1888–89 |
The 1887–88 Welsh Cup was the 11th season of the Welsh Cup. The cup was won by Chirk AAA who defeated Newtown 5–0 in the final, at Owens Field, Chester Road, Wrexham.
| Home | Result | Away | Remarks | |
|---|---|---|---|---|
| Vale of Llangollen | 5-0 | Wrexham Excelsior | ||
| Wrexham Olympic | 4-0 | Alyn White Stars | ||
| Druids | 3-0 | Rhostyllen Victoria | ||
| Chirk | Bye | |||
| Shrewsbury Town | 0-2 | Oswestry | ||
| Newtown | 9-0 | Wem White Stars | ||
| Ellesmere | 0-8 | Welshpool | Protest: Welshpool dismissed | |
| Llanfyllin | Bye | |||
| Davenham | 2-0 | Chester St Oswalds | ||
| Crewe Alexandra | 2-3 | Northwich Victoria | ||
| Over Wanderers | Bye | |||
| Bangor | 3-1 | Llandudno | ||
| Porthmadog | 3-1 | Corwen | ||
| Mold | 0-1 | Ruthin | Mold found in next round. |
| Home | Result | Away | Remarks |
|---|---|---|---|
| Wrexham Olympic | 4-1 | Vale of Llangollen | Protest: Late start and ground not enclosed - Wrexham refused to replay. |
| Druids | 1-2 | Chirk | |
| Oswestry | 6-0 | Ellesmere | |
| Newtown | Llanfyllin | Result not found, Newtown progressed. | |
| Northwich Victoria | 3-0 | Over Wanderers | |
| Bangor | 1-2 | Mold | |
| Davenham | Bye | ||
| Porthmadog | |||
| Home | Result | Away | Remarks | |
|---|---|---|---|---|
| Chirk | 3-1 | Vale of Llangollen | ||
| Newtown | 3-1 | Oswestry | ||
| Northwich Victoria | 2-0 | Davenham | ||
| Mold | w/o | Porthmadog | Porthmadog withdrew |
| Winner | Result | Runner-up | Venue | Remarks |
|---|---|---|---|---|
| Chirk | 5-0 | Northwich Victoria | Chester | 17 March 1888.[1] |
| Newtown | 2-0 | Mold | Oswestry | 24 February 1888, crowd 1,000[2] |